How to connect Multitech gateway MTCap3 to Chirpstack

I have a Multitech Conduit AP MTCAP3 gateway running Mpower and firmware 6.3.5 on a lan IP address xxx.xxx.xxx.75 and chirpstack on Ubuntu on a different machine at IP address xxx.xxx.xxx.98 in the same network segment. My MQTT broker is also on IP.98. On the MTCAP I have installed and enabled the Chirpstack Gateway bridge (version mtcap3) from the Multitech developer site (MultiTech Developer Resources » Installing Chirpstack Bridge). I have set up the MQTT parameters to point to IP98. I can see the gateway is sending packets to MQTT on 3 topics 1) gateway//event/stats, 2) gateway//event/up and v3) gateway//state. The gateway is configured in chirpstack There is a single end sensor device in this set up which is also configured in chirpstack. The gateway and the end device are listed as “never seen” in chirpstack. I have opened and rechecked various ports on IP98. The chirpstack gateway bridge logs look correct. After multiple attempts at reconfiguring, changing parameters etc. I am unable to get the gateway to be visble in Chirpstack. Anyone have an idea how to further diagnose ? What am I missing/forgetting :? Thanks in advance

I think you are just forgetting the topic prefix.

The topics the gateway posts to must start with your region (and subband if applicable), I.E “eu868” or “us915_0”. So the full topics should be <region-prefix>/gateway/<gateway-eui>/event/<event-type>

Many thanks for your note. The gateway is now visible in Chirpstack. The Lora device is also reporting data and (best of all) the packet decoder is working. You really made my day…

Happy to help!

:grinning: :+1: